Where in your bags?
How much?
Allowed
On the plane
✈ SouthwestCARRY-ON
Yes - carry it on.
- 100 ml is within Southwest's 100 ml limit.
- Each passenger can bring one quart-size bag of liquids, aerosols, gels, creams and pastes.
- Duty-free liquids over 3.4 oz bought on an international trip into the US with a connecting flight are allowed, in secure tamper-evident bags.
Official source
🌐Southwest carry-on policyLiquids rules↗To be 100% sure, we always recommend confirming with the official channels.
From Southwest's own published rules, checked October 2026. Rules change, so confirm with the airline before you fly.